Mechanical version: very simple, the fire generally do not need to be adjusted on the high fire, the time rotary knob turned to a few minutes on the automatic start, to end or cancel, directly screw the rotary knob back to the original position on the line. Computer version: mainly with the "microwave" to heat: for example, to heat the food for two minutes: put the food, press the "microwave" button, and then press the 1-minute button 2, and then press "start! Then press "Start" to start. If you press the wrong button or want to cancel in the middle of the process, you must press Cancel, not directly open the door. Rice can be heated in a ceramic bowl.